System of building-bricks.



No. 740,683. vPA'IEIIIED OCT; 6, 1903. G. NATHAN.

` SYSTEM 0F BUILDING BRICKS.V

APPLICATION FILED MAY 4f i903.

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c. NATHAN. SYSTEM 0F BUILDING BRIGKS.

APPLICATION FILED MAY 4, V1903.

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gatented ctober 1903.

PATENT OFFICE.

oEoiL NATHAN, oir wEsTMINsTEE, LONDON, ENGLAND.

SYSTEM OF BUILDING-BRICKS.

SPECIFICATION forming part of Letters Patent No. 740,683, dated October6, 1903.

Application tied my 4,1903. Vsessi No. 4155.583. on mode.)

To all whom it may concern.'

Be itknown that I, CEcIL NATHAN,a subject of the King of Great Britain,residing at positively interlocked throughout all its partsl by thematerial of the bricks themselves in addition to the cementingproperties of the mortar.

My improved bricks or blocks may be of the ordinary standard or anyother conven. .ient size.

My bricks are of two forms mutually interlocking, and a modificationthereof forms the quoi'ns, as hereinafter set forth.

Referring to the accompanying drawings,`

Figure l shows the Aform or header in side elevation. Fig. 2 shows theend view thereof. Fig. 3 shows the B form or stretcher in sideelevation. view thereof; Fig. 5, a side elevation, and Figs. 6 and 7 endviews, respectively, of the quoin; Fig. S, a top view, and Fig. 9 a baseview, respectively, of the' quoin. Fig. 10 illustrates a modiedconstruction with rounded angles. Fig. 11 is aperspective view of thebricks assembled, showing the bonding.

It will be seen `that the headers a have two transverse grooves c aboveand one longitutudinal groove d below, and the stretchers b have twotransverse grooves e above and a longitudinal tongue f below.

The quoin g, Figs.' 5 to 9, interlocks with the adjacent bricks and withthe bricks above and below it. The quoin g has one crossgroove h and onebutt-ended slot i on top My invention relates to a system character-Fig. 4 shows the end and corresponding groove 7c and slot Z in thebottom in reverse positions, Fig. 9.

In Fig. 10 a header a and stretcher b are shown interlocked. Theirprojections and slots c d e f have rounded angles in this case.

In Fig. l1 the headers and stretchers with rectangular corners are showninterlocked.

The necessity of a quantity of thick mortar is obviated by myconstruction, and I prefer to use a thin mortar or cement somewhat ofthe consistency of whitewash applied to the interlocking surfaces. Thejoinsare thus extremely close and no pointing is required.'

My improved bricks can be manufactured in the ordinary manner, and thespecial molds required are simple and involve no further alteration ofexisting plant.

My bricks may obviously be made of any plastic or other suitablematerial and hardened in the ordinary way. Bricks of special size,-suchas half-bricks or bats, are molded to complete angles or fill spacessmaller than the usual size, whereby the need of cutting is dispensedwith and a uniform close joining throughout is assured.

Finally my interlocking bricks may be easily set up to form wallswithout mortar and can be subsequently taken down and set up elsewherewithout difficulty or damage to Vor depreciation of the bricks.

Aithough in the foregoing description and in the claims itis assumedthat the headers are grooved only andthe stretchers tongued and grooved,yet the relative arrangement of these might obviously b'e reversedwithout departing from my invention.

In commencing a wall it is preferable to lay a row of headersupon thedamp course, thereby securing a better seating and alinement.

What I claim is- 1. In a duplex system of interlocking bricks,

a superior member having two top transverse grooves and one basallongitudinal groove adapted to interlock throughout its entire lengthwith'top projections onone or more inferior members saidv inferiormembers having basal tongues adapted to engage .with the superiormembers of a lower'row.l

2. In a duplex system of interlocking bricks, in combination stretcher-ssidewise adjacent and breaking joint, superior transverse grooves andinferior longitudinal tongues on said stretchers, headers basally andlongitudinally grooved, each groove adapted to receive thelendWise-contiguous projections of two inferior stretchers at one sideand the middle projection of the sideWise-contiguous stretcher at theother side, and transverse grooves on the upper surface of said headers,adapted to receive the' tongues of a superior row of stretchers.

In aduplex system ofinterlocking bricks, in combination stretcherssidewise adjacent and breaking joint, superior transverse grooves andinferior longitudinal tongues on said stretchers, headers basally andlongitudinally grooved, each groove adapted to re-

